Pungent bulb is a term used to describe three vegetables that are known for their strong smell and flavor: GARLIC (6 letters), ONION (5 letters), and LEEK (4 letters). All three of these vegetables are members of the Allium family, which is known for its pungent aroma and taste. GARLIC is a popular ingredient in many dishes, while onions and leeks are often used as garnishes or as part of a salad. All three of these vegetables have a strong, pungent flavor that can be overpowering if not used in moderation.